Senior Engineer - React

Cognizant; Chennai District; On-site; INR 2,500,000 - 3,500,000; Full time

Job summary

Cognizant is seeking a senior front-end engineer in Chennai to design and deliver robust web interfaces using React, JavaScript/TypeScript, HTML5 and CSS3. You will build production-grade apps, integrate with RESTful services, and champion accessibility and responsive design.

The role requires 5+ years of experience, hands-on React with hooks, and experience with state management libraries and modern CI/CD workflows, in a collaborative, multicultural setting.

Qualifications

• 5+ years in front-end, strong React and modern frameworks.
• Experience with Copilot or Claude for code generation.
• Strong JS/TS, HTML5, and CSS3 proficiency.
• Experience building and operating production-grade web apps.
• Hands-on React with hooks, state management, and component-based architecture.
• Experience with Redux, Zustand, or equivalent.

Responsibilities

• Build and operate production-grade web applications.
• Integrate front-end with RESTful APIs and back-end services.
• Champion accessibility and responsive design.
• Contribute to front-end testing (Jest, RTL, Cypress).
• Contribute to CI/CD pipelines and Git workflows.
• Collaborate across multi-cultural teams and time zones.

Skills

React

JavaScript/TypeScript

HTML5

CSS3

Hooks

State management

RESTful APIs

UI/UX & Accessibility

GenAI in UI

Production engineering

Testing frameworks

CI/CD

Git workflows

Independent problem solving

Job description

Location: Chennai, Bangalore
React JD:

Skillset : React, JavaScript / TypeScript, HTML5, and CSS3

• 5+ years of professional experience in front-end development, with strong emphasis on React and modern JavaScript frameworks.
• Experience leveraging Copilot or Claude for code generation.
• Strong proficiency in JavaScript / TypeScript, HTML5, and CSS3.
• Demonstrated experience building and operating production-grade web applications.
• Hands-on experience with React, including hooks, state management, and component-based architecture.
• Experience with front-end state management libraries (e.g., Redux, Zustand, or equivalent).
• Experience integrating front-end applications with RESTful APIs and back-end services.
• Solid understanding of UI/UX principles, accessibility , and responsive design.
• Familiarity with GenAI-powered applications and presenting AI-driven workflows or insights in user interfaces.
• Strong grasp of front-end production engineering concepts such as error handling, observability, performance optimization, and fault tolerance.
• Experience with front-end testing frameworks (e.g., Jest, React Testing Library, Cypress).
• Experience with CI/CD pipelines and Git-based version control workflows.
• Ability to work autonomously in ambiguous problem spaces and make sound engineering trade-offs.

Excellent problem-solving, communication, and collaboration skills, with the ability to work in multi-cultural teams across different time zones